Stove.



(No Model.)

` Patented Apr. 29, 1902. E. R. CA'HOONE.

STDVE.

(Application led Mar. 5. 1901.)y

2 Sheets-Sheet l.

Patented Apr. 29, i902.

E. a. cAHouNE.`

S T V E.

(Applic-a-tin filed Mar. 5. 1901.

2 Sheets-Sheet 2.

(Nn Model.)

(Mmmm) TN: N annls percus co.. worauf UNITED STATES PATENT OEEiCE.

EDWIN R. CAI-ICONE, OF NEWARK, NEW JERSEY.

sTovE-.

SPECIFICATIONforming part of Letters Pater-1t No. 698,802, dated April29, 1902. Application iiled March 5, 190.1. Serial No. 49,319. (Nolmodel.)

To all whom. it may coz/1.067%:

Be it known that I, EDWIN R. CAHooNE, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented new and useful Improvements in Stoves, of which the followingis a specification.

This invention relates to improvements in.

stoves for burning soft or bituminous coal, and more especially refersto the details of construction thereof.

The object of my invention is to provide a stove structure whereby theparts can be as- 'going into the tubes used to deliver currents` of airabove the top of the bed of the fuel.

Other objects and advantages will become apparent in the description tofollow and be particularlyA pointed out in the claims.

Figure 1 is a vertical section of my improved stove. Fig. 2 is anenlarged detail section of the upper portion thereof. Fig. 3 is asection 'on the line A A of Fig. 1. Fig.- 4 is a detail view of thepacking-ring between the fuel-- magazine and the air-heating chamber.Fig. 5 is a detail View of the annular ring, showing one of the ang'esforming a part of the auxiliary chambers above the tubes. Fig. 6

is a plan View, tho swinging ornamental top of the stove beingbrokenaway. Fig. 7 is'ra" detail perspective view ofthe packing-ring,showingthe rivet so positioned aslto make'V said ring smaller at itslowerend.

Referring to the drawings, the numeral 1 indicates a suitable-base,which supports av Resting on the top. of the drum 2 is a support 3,consisting of a" drum or outer casing 2.

depending iiange 4, adapted to bear against the top of the inner side ofthe drum, and an inwardly-projecting step-fiange 5, the lattersupporting the fuel-magazine.

The term fuel-magazine as used throughout this description and theclaims is intendter.

ed to refer to a fuel-magazine as Agenerally understood or to afire-pot.

Secured tothe druln in any preferred man- 5 5 ner-for instance, as shownat 6-is an annular air-heating chamber '7, provided with 'berispreferably'made in two sections and has three anges 9, 10, and 1l, theflange 9 forming a seat for the pendent bars 12, which comprise thefire-pot, the flange 10 forming an abutment for the lower thickened end13 of the magazine 14, and thepiange 11 forming a seat for anindependent packing connection l5. The magazine 14 is of the usualflaring formation, except as it nears the bottom it gradually becomesthicker, as at 13, terminatingin a depending inwardly-extendingoverhanging iiange 16. Said liange 16 is to direct the fuel to thefire-pot and prevent undue accumulation at this point. A horizontalflange26 surrounds the upper edge ofthe fuelmagazine 14 and is adaptedto be seated on the step-flange 5. Near the top of the magazine and atthe rear is an auxiliary smoke-exit 17, havin ga damper 18. The packingconnection is made of a strip or piece of metal having its endspivotally connected by a fastening 19, said fastening preferably passingthrough the metal at a point below a line drawn centrally around theconnection, so as to permit of its assuming an approximately coneformation when the parts are assembled. The packing p connection may beinverted, as shown in Fig. 7, to accommodate a magazine of larger diame-In either form the diameter of the ring is adapted'to be varied ateither edge when the magazine or the fire-pot is being positioned.

Resting on the horizontal flange 26 of the magazine and prevented fromlateral displacement by the step-flange 5 is a ring 20, having formedtherein a series of depressions or seats 2l, in which rest dependingtubes 22. O ver the ring 2O and ttin g between upwardlyprojectingiianges thereon is an annular plate 23, having a series of openings 24and up- Wardly-projecting flanges 25, surrounding said openings, thelatter corresponding in shape to that of the tubes 22. The annular plateis designed to be used as a damper to control the IOC admission of airto the tubes and is operated by a handle 27.

A stationary finishing-ring 28 of suitable design and shape has annularbearing-surfaces 29 and 30, the surface 30 being seated against a llange3l on the support 3, while the surface 29 rests on the ring 20 and bearsagainst a flange thereon. Depending from the finishing-ring 28 areannular flanges 32, correspondingin shape to the flanges 25. Saidflanges when the parts are assembled form a continuation of the tubes 22and serve as an auxiliary chamber.

Formed in the finishing-ring 28 is an annular seat 33 for the stove-top34. Pivoted to the ring 28 is a horizontal swinging top 35, sopositioned as to operate the feed door or cover 36 and that in turn thedamper 18, now to be described. The feed-door 36 is hinged to the top 34and has an upright lug 3S and a depending chain 39, connected at itsopposite end to the damper 1S, the latter being pivoted to themagazine,.as at 40.

The drum is fixed to the base, and the annular air-heating chamber andthe fire-pot are placed in position. After the bars forming the fire-potare hung the top flange 5 is placed in the upper end of the drum and themagazine is then positioned, the lower end fitting nicely in the innerside of the beveled flange 10 of the air-heating chamber. W'hen themagazine is in place, the packing-ring 15 can readily accommodateitself, forming a close j ointto prevent the escape of air at thispoint. Withthestructurethusfarassembled tubes 22, the ring 20, theannular plate 23, finishing-ring 28, top plate 34, swinging top 35,damper and attachments, and the air-introducers are fitted to theirrespectivev places,

completing a stove structure capable of being assembled by any one ofordinary intelligence.

With the parts constructed to be seated within and locked to each otherthe use of separate clamping devices is dispensed with.

Further than this, if the connections should not be made to exactlyliteach other the one or the other of parts adjacent the joint will coverthe lap to such an extent as to practically make an unbroken nish. Thisis especially true of the joint between the magazine and the air-heatingchamber. For instance, if the joint is not made perfect Mbetween the twoelements it will be by the packing connection 15. Green fuel isdelivered to the fire-pot and ignited, whereupon the products ofcombustion pass through the fuel and escape between the pendent bar sinto the space between the magazine and drum, thence to the chimney. Theplate 23 is operated to admit air to the fuel according to the conditionof the lire and force of the draft.

I have found by experience that when the upper partvof a depending tubeis ong-a level with the top of the stove structure surrounding it theheat as it rises has a` tendency to and in fact does detract air goinginto said tube and necessarily causes the loss of lthis most importantelement when the fire is burning. To overcome this objectionablefeature, l provide the housing of chambers 25 above the top of the tube,so that the incoming air is out of the effective range of thesurrounding ascending heat. By thus placing the inlets of the tube abovethe level of the top of the stove I have found that a greater per cent.of air is drawn in and through the fuel. To supply air direct from theatmosphere above the fuel without first beingheated and then beingbroken before meeting the gases means practically the loss of a largepercentage of combustion.

Having thus described my invention, what I claim is Y 1. A stovecomprisinga casing, a lire-pot,'a magazine, and an independent packingconnection whose size is adapted to be varied at eitheredge When fittingit to overlap 'the abutting ends of said fire-pot and magazinesubstantially as described.

2. A stove comprising a casing, a fire-pot, a fuel-magazine having adepending overhanging lip projecting into said fire-pot, and anindependentpacking connection whose size is adapt-ed to be varied ateither edge when fitting the abutting ends of the fire-pot and thefuel-magazine, substantially as described.r

3. A stove comprising a casing, a fire-pot, a fuel-magazine, and a looseindependent packingconncction Whose size is adapted to be varied ateither edge when fitting the abutting ends of said fire-pot andfuel-magazine, substantially as described.

4. A stove comprising a casing a tire-pot, a

fuel-magazine, and a depending overhanging` lip projecting into saidfire-pot, and an independent packing connection between said firepot andthe fuel-magazine, substantially as described. f

5. A stove comprising a casing a fire-pot, a fuel-magazine, anair-heating chamber interposed between the fuel-magazine and the lirepotsaid chamber'- having an upwardly-projecting abutting flange or seatwhich forms a rest for the fuel-magazine, and an independent connectionwhose size is adapted to be varied at either edge when {itting it tosaid fuelmagazine and the flange or seat on the airheating chamber,substantially as described.

6. A stove comprising a casing, a lire-pot, a fuel-magazine,asupporting-ring in the upper end of said casin g adapted to support thefuelmagazine, and an independent connection whose size is adaptedY to bevaried at either edge when fitting it to the fire-pot and thefuelmagazine, substantially as described.

7. A stove comprisingacasing, afuel-magazine, a lire-pot, one or moretubes for introducingair to the fuel in the fire-pot, means forsupporting the tubes, movable air-heating chambers formed above theupper ends of the tubes and above .the means for supporting said tubes,and plates connecting said cham- IOO IIO

bers for covering the tubes when the chambers are moved, substantiallyas described.

8. A stove comprisinga casing, a fuel-magazine, a fire-pot, one or moretubes for introducing air to the fuel in the fire-pot, means forsuspending the tubes, and independent air-heating chambers formed abovethe upper end of each of the tubes and above the means for supportingsaid tubes, substantially as described.

9. A stove comprising a casing, a f nel-magazine, a fire-pot, a supportfitted to the upper end of the casing and adapted to support thefuel-magazine, atop for said casing and magazine, one or more pipes ortubes depending from said top, and upwardlyextending flanges above saidtubes to form air-heating chambers, substantially as described.

10. A stove comprising a casing, a fuelmagazine, a lire-pot, a supportseated in the upper end of the casing having formed therein a steppedseat, .one or more depending tubes, a support for holding said tubes,said support which is seated inthe casing supporting both thefuel-magazine and the support from which the tubes depend, substantiallyas described.

11. A stove comprising a casing, a fuelmagazine, a re-pot, a supportseated in the upper end of the casing having formed therein a steppedseat, one or more depending tubes, a support for holding said tubes, abase having openings therein and surrounded by upwardly-extendingflanges, which form continuations of the depending tube or tubes, and astove-top composed of a lid portion and an outer portion surroundingsaid lid portion, said latter portion having depending flanges adaptedto coincide with the upwardly-projecting flanges on the base,substantially a described.

12. A stove comprising a casing, a fuelmagazine,a fire-pot, one or'morepipes or tubes adapted to deliver air to the fuel in the firepot, meansfor supporting said tubes, independent auxiliary air heating chambersabove and for each of said tubes, said chambers being formed above theupper open end of the tubes and above the support therefor,substantially as described.`

13. In a stove, the combination of a firepot, one or more tubes adaptedto deliver air to the fuel in the iire-pot,means for supplying saidtubes with air, a cover over said means for supporting the tubes,auxiliary chambers located above the open ends of said tubes, saidchambers bein g-formed by flanges projecting above the means forsupporting the tubes, and flanges projecting from the cover,substantially as described.

14. In a stove, the combination of a firepot, one or more tubes adaptedto deliver air to the fuel in the fire-pot, a cover, supports for thetubes and movable auxiliary air-heating chambers located above and foreach of the tubes for heating the air before entering said tubes,substantially as described.

15. In a stove, the combination of a firepot, a magazine, means forsupporting the magazine, one or more tubes adapted to deliver air to thefuel in the fire-pot, a support for the tubes which is seated on theupper end of the magazine, and means for regulating the admission. ofair tothe tubes, substantially as described.

16. A stove comprising a casing, a lire-pot having an upwardly-projecting flange, a magazine, and an independent packing connectionwhose sizeis adapted to be varied at either edge when fitting it to the ends ofthe fire-pot and fuel-magazine, said packing connection being seated onthe upwardly-projecting flange of said fire-pot, substantially asdescribed.

17. A stove comprising a casing, a top, a fuel-magazine having a flangeat its upper end, a re-pot, asupport mounted in the upper end of thecasing having a seat formed at its inner edge, the flange of themagazine fitting the seat formed in the support thereby suspending themagazine, a ring seated on the upper part of the magazine, afinishing-ring seated on the support on which the top rests,substantially as described.

18. Atube or tubes for the purpose specified, a support for the same,and means located above the support to prevent the heat rising therefromdeflecting air entering said tubes, said means opening vertically tothey upper and lower sides, the lower flange fitting the casing, anopening beingA formed for a feed-door and a flange surrounding the same,a feed-door, and a cover adapted to fit the flange on the upper side ofthe top of the stove and the flange surrounding the feedopening,substantially as described.

21. A stove comprising a casing, a stove- `top having an openingsurrounded by ailange,

a fuel-magazine provided with a flange which fits the flange of the top,a fire-pot, and independent means'connecting the magazine and fire-pot,whose size is adapted to be varied at either edge when the magazine andfire-pot are `placed in position, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

EDWIN R. CAHOONE. Witnesses:

GEO. E. FREOH, W. A. WILLIAMS.

IOO

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